Hermione Granger wakes up in unfamiliar surroundings. Where is she? And why?

Severus Snape is heartbroken when his old colleague dies, but his current colleague is there to pick up the pieces.

Colleagues Severus Snape and Hermione Granger enter the woods to collect some potion ingredients.

Arithmancy mistress Hermione Granger has the flu. Colleague Severus Snape takes care of her.